Thought it would be a nice idea to have a topic with a few suggested liveries for the 757. Since the product hasn't been released as yet, no screenshots will be shown but please feel free to suggest a few liveries in anticipation of this product.
To get the ball rolling, here are a few of my suggestions

Delta (Old and New Livery)
American (Old and New Livery)
TWA (Last Livery)
Eastern Airlines
United Airlines (Old and New Livery)
Fly Jamaica

Some of these liveries should be on the RR model so I guess whenever it is released these liveries can be painted.